To determine the correct subscripts in a chemical formula, you have to solve how many atoms you need to balance the charge! (:
Answer:
1.03M
Explanation:
mass/molar mass = moles of solution
50 g / (80+1) = 0.617 mol HBr
molarity*volume = moles
M*0.600 L = 0.617 mol
M = 0.617/0.600 = 1.03 M
When a weak acid is titrated against a strong base, the pH of the solution rises, levels off through the buffer zone, and then rises quickly to reach the equivalence point.
<h3>What is titration?</h3>
Titration is a typical research center technique for quantitative investigation synthetic to decide the convergence of a recognized analyte. Titration is a crucial cycle in the creation of cheddar. For this situation, titration is significant while estimating the pH and acridity of the underlying milk being utilized to make the cheddar. Corrosive base titration is a quantitative investigation of convergence of an obscure corrosive or base arrangement. Titration, otherwise called titrimetry, is a typical lab strategy for quantitative substance investigation that is utilized to decide the convergence of a distinguished analyte. A reagent, called the titrant or titrator is ready as a standard arrangement. A known fixation and volume of titrant responds with an answer of analyte or titrand to decide focus. The volume of titrant responded is called titration volume.
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Answer:
7 methyl 3 octyne is the answer option D
Conversion factor, 1 gallon = 4546.09 ml
Volume of stock solution = 1 gallon or 4546.09 ml
Dose required by the child = 5 ml/day
The number of days a gallon of this medicine last,
4546.09 ml x 1 day/ 5 ml = 909.218 days
Therefore, 1 gallon would last 909 days.
